Hey,
I see that Sera has the 2023 calendar for download if anyone is interested.
https://www.sera.de/en/service/guides/?tx_ggratgeber_manual%5B%40widget_0%5D%5BcurrentPage%5D=3&cHash=dc5a3d1ebef1a605aed8c4f86612e511 (https://www.sera.de/en/service/guides/?tx_ggratgeber_manual%5B%40widget_0%5D%5BcurrentPage%5D=3&cHash=dc5a3d1ebef1a605aed8c4f86612e511)